Warning: Permanently added '10.128.1.43' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 587.849020][ T6786] ================================================================== [ 587.849189][ T6786] BUG: KASAN: out-of-bounds in kvm_arch_hardware_setup+0xb05/0xf40 [ 587.849198][ T6786] Read of size 4 at addr ffffffff896c3134 by task syz-executor614/6786 [ 587.849201][ T6786] [ 587.849213][ T6786] CPU: 1 PID: 6786 Comm: syz-executor614 Not tainted 5.7.0-syzkaller #0 [ 587.849218][ T6786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 587.849222][ T6786] Call Trace: [ 587.849227][ T6786] [ 587.849287][ T6786] dump_stack+0x1e9/0x30e [ 587.849338][ T6786] print_address_description+0x66/0x5a0 [ 587.849372][ T6786] ? vprintk_emit+0x342/0x3c0 [ 587.849385][ T6786] ? printk+0x62/0x83 [ 587.849418][ T6786] ? trace_irq_disable_rcuidle+0x1f/0x1d0 [ 587.849429][ T6786] ? vprintk_emit+0x339/0x3c0 [ 587.849441][ T6786] kasan_report+0x132/0x1d0 [ 587.849453][ T6786] ? kvm_arch_hardware_setup+0xb05/0xf40 [ 587.849467][ T6786] kvm_arch_hardware_setup+0xb05/0xf40 [ 587.849526][ T6786] ? interrupt_entry+0xb8/0xc0 [ 587.849534][ T6786] ? apic_timer_interrupt+0xa/0x20 [ 587.849539][ T6786] [ 587.849620][ T6786] ? vga16fb_fillrect+0x70f/0x13e0 [ 587.849628][ T6786] ? vga16fb_fillrect+0xf9b/0x13e0 [ 587.849636][ T6786] ? vga16fb_fillrect+0xfe0/0x13e0 [ 587.849647][ T6786] ? vga16fb_fillrect+0xfd0/0x13e0 [ 587.849657][ T6786] ? vga16fb_fillrect+0xfe0/0x13e0 [ 587.849692][ T6786] ? bit_clear_margins+0x266/0x620 [ 587.849708][ T6786] ? fbcon_switch+0x1448/0x1e40 [ 587.849752][ T6786] ? redraw_screen+0x4fc/0x16f0 [ 587.849770][ T6786] ? fbcon_modechanged+0x8d5/0xd90 [ 587.849787][ T6786] ? fb_set_var+0x822/0xcc0 [ 587.849826][ T6786] ? do_fb_ioctl+0x502/0x6f0 [ 587.849853][ T6786] ? fb_write+0x540/0x540 [ 587.849893][ T6786] ? __se_sys_ioctl+0xf9/0x160 [ 587.849941][ T6786] ? do_syscall_64+0xf3/0x1b0 [ 587.849952][ T6786] ? entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 587.849969][ T6786] [ 587.849973][ T6786] The buggy address belongs to the variable: [ 587.850027][ T6786] kvm_cpu_caps+0x24/0x50 [ 587.850030][ T6786] [ 587.850034][ T6786] Memory state around the buggy address: [ 587.850042][ T6786] ffffffff896c3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 587.850048][ T6786] ffffffff896c3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 587.850055][ T6786] >ffffffff896c3100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 587.850059][ T6786] ^ [ 587.850066][ T6786] ffffffff896c3180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 587.850072][ T6786] ffffffff896c3200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 587.850076][ T6786] ================================================================== [ 587.850080][ T6786] Disabling lock debugging due to kernel taint [ 587.850085][ T6786] Kernel panic - not syncing: panic_on_warn set ... [ 587.850094][ T6786] CPU: 1 PID: 6786 Comm: syz-executor614 Tainted: G B 5.7.0-syzkaller #0 [ 587.850097][ T6786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 587.850100][ T6786] Call Trace: [ 587.850103][ T6786] [ 587.850110][ T6786] dump_stack+0x1e9/0x30e [ 587.850161][ T6786] panic+0x264/0x7a0 [ 587.850169][ T6786] ? trace_hardirqs_off+0x16/0x70 [ 587.850179][ T6786] kasan_report+0x1c9/0x1d0 [ 587.850188][ T6786] ? kvm_arch_hardware_setup+0xb05/0xf40 [ 587.850198][ T6786] kvm_arch_hardware_setup+0xb05/0xf40 [ 587.850205][ T6786] ? interrupt_entry+0xb8/0xc0 [ 587.850212][ T6786] ? apic_timer_interrupt+0xa/0x20 [ 587.850216][ T6786] [ 587.850225][ T6786] ? vga16fb_fillrect+0x70f/0x13e0 [ 587.850232][ T6786] ? vga16fb_fillrect+0xf9b/0x13e0 [ 587.850239][ T6786] ? vga16fb_fillrect+0xfe0/0x13e0 [ 587.850247][ T6786] ? vga16fb_fillrect+0xfd0/0x13e0 [ 587.850255][ T6786] ? vga16fb_fillrect+0xfe0/0x13e0 [ 587.850267][ T6786] ? bit_clear_margins+0x266/0x620 [ 587.850277][ T6786] ? fbcon_switch+0x1448/0x1e40 [ 587.850295][ T6786] ? redraw_screen+0x4fc/0x16f0 [ 587.850307][ T6786] ? fbcon_modechanged+0x8d5/0xd90 [ 587.850317][ T6786] ? fb_set_var+0x822/0xcc0 [ 587.850335][ T6786] ? do_fb_ioctl+0x502/0x6f0 [ 587.850350][ T6786] ? fb_write+0x540/0x540 [ 587.850357][ T6786] ? __se_sys_ioctl+0xf9/0x160 [ 587.850366][ T6786] ? do_syscall_64+0xf3/0x1b0 [ 587.850374][ T6786] ? entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 588.970264][ T6786] Shutting down cpus with NMI [ 588.971494][ T6786] Kernel Offset: disabled [ 589.390493][ T6786] Rebooting in 86400 seconds..